Maybe 1 tog to start with
I really like Merlin’s sleep suit and happiest baby swaddles!
We had our baby in July and we had 1 x 1 tog and 1 x 0.2 tog (our room is in the loft so gets very warm!), both were love to dream swaddles - they’re amazing
It largely depends on your room temp at night to be honest, but of course that may differ slightly between now and April. I’d recommend getting a gro egg or other room thermometer and seeing what temp the room where baby will be sleeping is at night. Our room is around 19 all night (we have a heat pump) and we’ve been using the moderate swaddle with a long sleeved baby grow and vest under which seems to be perfect for our little one x
The Love to Dream website has a guide for this! You can even search by season on the website so it will only show you appropriate togs for spring/summer etc. Also, I would recommend more than two, as you’d be surprised by how quickly they can go through them in terms of leaking nappies/spit up and being in the wash! Three of anything like that is usually recommended, there’s a good saying “one to wear, one in the wash and one spare”.
I've always referred to this guide to dressing LO, until you work out if your LO runs warm or cold. My LO is always hot