Hilary Duff had the "most special day" celebrating her baby shower.

Hilary Duff

Hilary Duff

The 'Younger' star is expecting her third child - a sibling for Banks, two, who she has with Matthew Koma, and Luca, eight, with her ex-husband Mike Comrie - and was overjoyed to mark the upcoming birth with a party with her nearest and dearest, who she hadn't seen for so long.

Taking to Instagram, she wrote: "My sweet sweet @sharm1222 I can’t thank you enough for planning the most special day. I seriously wasn’t planning on a party like this for baby #3 during these times but you found a way to strong arm everyone into testing haha and honestly the day was so relaxing. I got quality time with many of my LA friends who I haven’t been able to see in one setting in so long and deeply missed my tried and trues who live far away. I love all of these women. Thank you for showing up for me in life through the thick and the thin. The thick being holy s*** I’m having a third child ... send help! (sic)"

Meanwhile, Hilary has been experiencing "traumatic" lightning crotch during her pregnancy and has been having sharp stabbing pains.

The 33-year-old actress explained: “Let’s be real here, I think Matt was the first one to be on blast with that and then I just happened to repost it because I can’t help but think his trolling me is so funny.

"I didn’t have it with the other kids so I text my midwife the other day and I was like, ‘What’s up with the stabbing pains in my vagina? I’m not feeling this.’ It feels awful, like you’re being struck by lightning. She just wrote back and was like, ‘Oh, lightning crotch,’ like it was no big thing. I was like, ‘This is quite traumatic.’ It’ll just strike and all of a sudden you’re doubled over then it’s gone. The term is called lightning, which is like the baby getting ready for birth, lowering."