Mom guilt

Once a week I drop my 16 month old off at my mom’s house for an overnight so my husband and I can have quality time together and sleep in. She’s a saint and only lives 10 minutes from me. She also watches our son most days during the week because we work. She has EVERYTHING at her house (diapers, clothes, pack n play, etc). Anyways, we have an overnight planned for this coming Friday but I started feeling really sick today. My son is already with my mom today and I asked if she can watch him tonight and tomorrow so I can recover and I also really don’t want to get him sick. She was happy to watch him. It’s never a problem for her, in fact she’d watch him 24/7 if she could 😂 If I feel better for our planned overnight on Friday and with her watching him tonight, my son will be away from home for two nights in one week!! This never happens and I feel SO guilty. Like it’s too much. I already miss my munchkin. He LOVES his grandma but I’m his mommy and I know he will miss me. I feel really bad like I need to just suck it up and pick him up. I mean I’ll probably still be contagious tomorrow and the next day. But it is nice to just recover and stay in bed so I feel better when I do pick him up tomorrow evening. Please tell me I don’t have to feel so guilty