I have 2 close together - both girls. Just over a year apart. DD1 was planned - I came off the pill and fell pregnant within 2 months. Then my periods were all over the place after she was born, and I didn't go back on the pill right away, and when DD was 6-7 months old I found out I was a few months pregnant with DD2. Unplanned but very much wanted and loved. 😍
We didn't think 'oh no what shall we do?' We just went with it. They were golden babies to be honest and always played lovely together as children, and were fun and polite, and were Angels to have around. We had the best Christmases and holidays and day trips together!
When they hit their teens though - 13 and 14... OMG I don't know how I got through it! 😆 They fought half the time for about 3 years, and were so sullen and argumentative. (Older DD was the worst!) They fought with other girls at school too. Every other month there was a row with one of the mums! (Always me they had a go at - never DH!) 
College years were better - and the childish bickering stopped, and they went to uni. Both at the same time as DD1 had a gap year and had a job for a year (as she couldn't decide whether to go to uni.) So they went at the same time. Different unis too - 150 miles apart, and both 150-200 miles from us. That was fun! 😩 OMG the stress and the money it cost and the travelling and everything that went with having a child at uni - times 2! I don't know how we did it!
But they left for uni, and never came back .. Both late 20s, now, and live close to each other, (with their DP,) about 20-25 miles from us. We have the 2 most wonderful young women in the world in our lives now ... Clever, hard working, successful, happy, healthy, beautiful young women, and I wouldn't change a thing if I could go back in time 30 years! 