unattractive

I had my baby 4months ago. I am a mother of 3 children. But ever since i had my baby I feel unattractive that I constantly ask my husband if he thinks i am beautiful. Of course, he says yes, but I just dont feel that way. The reason being is because back then (before baby) I would dress up, do my hair, makeup and try to look nice. Now, i wake up, no make up, I always put my hair in a bun and wear whatever I see that looks comfy (jeans and shirt) sometimes I feel like a slob. And i am not going to lie there are times i dont feel pretty and maybe because I am exhausted with all the hassle of 3 kids, but that shouldnt be an excuse, right? I dont want my husband to miss the old me. Does anyone else ever felt that way? I know my husband loves me, but I just dont feel beautiful.