Postpartum sex... help needed!

My doctors office does 5 week checks instead of the standard 6 week. I had a third degree tear, at my one week postpartum my doctor said I was healing VERY well as expected me to get the green light come my 5 week check... that’s this Friday coming up. I’m really looking forward to being intimate with my husband again, that’s easier said than done I know. But I’d like to be prepared in all ways possible. I’ve read that women had mild to extreme discomfort the first few times, so I’m mentally prepared for the first few times to not last long/ be uncomfortable. That being said the idea of sex seems different now, as if it’s fresh new start with my husband intimately. I’ve never worn lingerie before, more because I can’t find any I like. I don’t want to look trashy wearing stripper lingerie, I want something sexy yet modest, something almost sophisticated(if that makes sense lol). However I can’t bring myself to spend $50 on one piece of lingerie. Does anyone have any recommendations for places to buy lingerie that isn’t VS? Also lube... we’ve never used lube, but again I want to be prepared and have it be as comfortable as I can make it for me. What lubes do you recommend??